Its a call to your emotions, either because we sense it or we desire it, and to know whether the dream is favorable or not we need to look if the flowers are alive or wilted.
Dream dictionary: orchid flowers dream meanings
…Dreaming of dirty, stagnant water, even if its streaming, indicates evil, corruption, and larceny. Dreaming of clean, clear water in any form, it is always a good sign of joyful motivation to live in prosperity, tranquility, etc. When you see dirty water within dreams, in whatever form it appears (the worst is the muddy water), suggests poor health or unpleasant events, undesirable and hypocritical friends. Dreaming of clean, fresh water that falls on the face or head of the dreamer, announces that love illusions are going well. When the water is clear, clean and seems still or perhaps with gentle waves, and reflecting the sky, its reflection of cosmic things and quiet meditation. Dreaming of playing with clean water or walking on it, announces that there will soon be pleasing illusions, which is more probable if you can see decorative plants and aquatic flowers in the water. Dreaming of…
To dream about jasmine flowers and their delicate perfume symbolizes inner peace, with yourself and others. It announces upcoming entertainment and safe pleasures.
…Traveling over a rough, unknown road in a dream, signifies new undertakings, which will bring little else than grief and loss of time. If the road is bordered with trees and flowers, there will be some pleasant and unexpected fortune for you. If friends accompany you, you will be successful in building an ideal home, with happy children and faithful wife, or husband. To lose the road, foretells that you will make a mistake in deciding some question of trade, and suffer loss in consequence….